Stability of R parity in supersymmetric models extended by U(1)_{B-L}
Abstract
We perform a study of the stability of R-parity-conserving vacua of a constrained version of the minimal supersymmetric model with a gauged U(1)_{B-L} which can conserve R-parity, using homotopy continuation to find all the extrema of the tree-level potential, for which we also calculated the one-loop corrections. While we find that a majority of the points in the parameter space preserve R-parity, we find that a significant portion of points which naively have phenomenologically acceptable vacua which conserve R-parity actually have deeper vacua which break R-parity through sneutrino VEVs. We investigate under what conditions the deeper R-parity-violating vacua appear. We find that while previous exploratory work was broadly correct in some of its qualitative conclusions, we disagree in detail.
Keywords
Cite
@article{arxiv.1212.4146,
title = {Stability of R parity in supersymmetric models extended by U(1)_{B-L}},
author = {J. E. Camargo-Molina and B. O'Leary and W. Porod and F. Staub},
journal= {arXiv preprint arXiv:1212.4146},
year = {2013}
}
Comments
22 pages, 4 figures (32 sub-figures)